8533997 has 4 divisors (see below), whose sum is σ = 8554140. Its totient is φ = 8513856.

The previous prime is 8533981. The next prime is 8534003. The reversal of 8533997 is 7993358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2477476 + 6056521 = 1574^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 8533997 - 2⁴ = 8533981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8533097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9422 + ... + 10287.

It is an arithmetic number, because the mean of its divisors is an integer number (2138535).

Almost surely, 2^8533997 is an apocalyptic number.

It is an amenable number.

8533997 is a deficient number, since it is larger than the sum of its proper divisors (20143).

8533997 is a wasteful number, since it uses less digits than its factorization.

8533997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20142.

The product of its digits is 204120, while the sum is 44.

The square root of 8533997 is about 2921.3005665285. The cubic root of 8533997 is about 204.3544794804.

The spelling of 8533997 in words is "eight million, five hundred thirty-three thousand, nine hundred ninety-seven".